Amazon.com: Whirlpool 1183054K True HEPA Filter, 1 Count (Pack of 1), White : Home & Kitchen
Amazon.com: Whirlpool 8171434KS Genuine Charcoal Pre-Filter - Whishield Anti-Microbial Activated - Replacement Fit for Air Purifier AP51030K, AP45030K, APR45130L and WP500, Large - 4 Pack : Home & Kitchen